Concrete-mixer.



'G. W. WHITWORTH.

CONCRETE MIXER.

APPLICATION FILED NOY.19, 1912.

1 O82,000. Patented Dec. 23. 1913.

Inventor; GWWkz'tworth, y

Attorney.

bl'tneasesi COLUMBIA PLANDGRAPH 00., WASHINGTON. n. c.

GEORGE W. WHITWORTH, OF CEDAR FALLS, IOWA.

CONCRETE-MIXER.

Specification of Letters Patent.

Patented Dec. 23-, 1913.

Application filed November 19, 1912. Serial No. 732,277.

To all whom it may concern Be it known that I, GEORGE TV. VVHIT-woRTI-I, a citizen of the United States of America, and a resident ofCedar Falls, Blackhawk county, Iowa, have invented certain new anduseful Improvements in Goncrete-Mixers, of which the following is aspecification.

My invention relates to improvements in concrete mixers, and the objectof my improvement is to provide a light, portable, simply constructedmixing machine for cement, concrete or the like, adapted to be knockeddown for transportation, and whose parts are so fitted together as to beboth convenient in use, readily dumped, and of inexpensive construction.This object I have accomplished by the means which are hereinafterdescribed and claimed, and which are illustrated in the accompanyingdrawings, in which:

Figure 1 is a side elevation of my improved concrete mixer. Fig. 2 is arear end elevation of my said mixer. Fig. 3 is an upper plan view of themixing-drum of my said machine, with the middle portion thereof and theends of the spindles broken away. Fig. 4 is a vertical transversesection of the drum shown in Fig. 3, on the line 0-4), looking in thedirection indicated by the arrow. Fig. 5 is a right-hand elevation ofthe rear drum-cap or end, showing its inner face. Fig. 6 is aperspective view of the inner face of the forward drum-cap or endcasting.

Similar numerals of reference denote corresponding parts throughout theseveral views.

The mixing-drum of my machine is composed of a U-shaped body 1, open atthe top, and whose end edges are fitted within the flanges of thedrum-heads 2 and 3, being held in place therein by lugs 24 castintegrally on the inner faces of the heads. The sides and bottom flangesof said heads have outwardly-projecting integral lugs 16,oppositely-located lugs on said heads being connected by means of theheaded rods 17 and nut-s 18. The said heads are preferably made ofcast-iron with outwardly-projecting axial spindles 7 and 9 respectivelywhich are seated in one-piece bearings 8 and 10, the weight of the drumserving to keep them in place. The outer end of the spindle 7 is squaredto take the sleeve of a crankarm 13 provided with a handle, the sleevebeing secured by a set-screw 14. The bearing-blocks 8 and 10 are securedby bolts 15 to the top integral transverse portions of the A-frames 11,the lower ends of the latter having longitudinal connecting bars or feet21, which permit the machine to be slid from place to place. The legs ofsaid frames are connected on the right by crossed bars 20 and on theleft by means of a horizontal bar 19. These A-frames permit barrows orother receptacles to be placed therebetween to receive the contents ofsaid drum when dumped.

The drum has a slidable cover 26. The upper edges of the drum-body 1 areflanged over inwardly and horizontally. Referring particularly to Figs.3, 4 and 6, it will be seen that the drum flanges and end edges areseated inside the flanges of the drumheads and held in place by thestuds 24. On the inner face of the forward head 3 is aninwardly-projecting horizontal shelf 27 spaced away from the sideflanges of the head and being located below the level of the partial topflanges 25 of said head. The head is open above the shelf 27 and aslide-way thus provided for the slidable cover 26, the latter having itsforward end bent downwardly outside of said forward head at 4. Upon thetop of the cover are the pair of handles 5 and 6. Spacedapart parallellongitudinal slats 23 are secured to the top of said cover 26 near itslongitudinal edgesby means of the rivets 24. The outer edges ofsaidslats are raised and spaced apart enough from the cover to takeslidably therebetween the inwardly-flanged longitudinal upper edges ofsaid drum-body 1. The cover thus is made slidable along 'thedrum-flanges and when in place is very tight, and the contents cannotleak out, but

when mixed, the cover may be slid forward and the contents dumped byinverting the drum.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is:

1. In combination, a receptacle, comprising flanged heads, one of whichhas a slot adapted to receive a slidable closure, a U- shaped hollowbody seated within the flanges of said heads, a slidable closure forsaid body, movable through the slot in said head, and means fordetachably securing said heads to said body, comprising lugs extendingoutwardly from the edges of said heads to furnish oppositely-placedpairs, and connecting-bars secured detachably between and to the lugs ofeach pair.

2. In combination, a receptacle, comprising flanged heads, one of whichhas a slot adapted to receive a slidable closure therethrough, aU-shaped hollow body seated within the flanges of said heads, a slidableclosure for said body movably seated in the slot in said head, and meansfor detachably securing said heads to said body, comprising lugsextending outwardly from the edges of said heads to furnishoppositely-placed pairs, and connecting bars secured detachably betweenand to the lugs of each pair.

3; In combination, a receptacle, comprising flanged heads, a U-shapedhollow body seated within the flanges of said heads and having itslongitudinal edges bent over inwardly and horizontally to form flanges,one of said heads having the medial part of its upper flange removedwith an adjacent portion of the head, to provide a horizontal openingtherein, a 'cover adapted to slidably close the receptacle and havinglongitudinal guides adapted to fit slidably over the body-flanges, andmeans for detachably securing the said heads and body together,comprising lugs extending out-' wardly from the edges of said heads tofurnish oppositely-placed pairs, and connectin bars secured detachablybetween and to the lugs of each pair.

4. In combination, a receptacle, comprising flanged heads, a U-shapedhollow body seated within the flanges of said heads and having itslongitudinal edges bent over inwardly and horizontally to form flanges,one of said heads having the medial part of its upper flange removedwith an adjacent por tion of the head, to provide a horizontal openingtherein, said head having a pro- 'jecting horizontal integral shelf onits inner face spaced away from side flanges to admit the body edgetherebetween and having its upper face flush with the lower limit ofsaid horizontal opening, a cover adapted to slidably close the body andhaving longitudinal guidebars secured on its upper face near itslongitudinal edges adapted to slidably move over the said body-flanges,said cover being located just below said body-flanges with said guidesresting on the flanges and the cover slidable through the said headopening over said integral shelf, and means for detachably securing saidheads and said body together.

Signed at Waterloo, Iowa, this 31st day of 0a., 1912.

GEORGE W. WHITWORTH. "Witnesses;

W. I-LBRUNN, Gr. G. KENNEDY.

Copies of this patent may he obtained for five cents each, by addressingthe Commissioner of Patents. I

Washington, D. G.

